| 'Greek letter alpha' | angular acceleration; first [carbon atom next to the carbon atom bearing the active group in organic... |
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| APG | acid-precipitated globulin; ambulatory patient group; animal pituitary gonadotropin; antegrade pyelo... |
| ASG | advanced cell group; American Society for Genetics; Army Surgeon General; aspermiogenesis |
| AVG | ambulatory visit group |
| AZO | [indicates presence of the group -N:N-] |
| group hospital | A private hospital organised and controlled by a group of physicians and restricted to the reception and care of their own patients. (05 Mar 2000) |
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| group III mycobacteria | Mycobacteria that are either colourless or that slowly produce a light yellow pigment when grown in the presence of light. Organisms placed in this group belong to the species Mycobacterium intracellulare. Synonym: nonchromogens. (05 Mar 2000) |
| group II mycobacteria | Mycobacteria that produce a yellow pigment even when grown in the dark; when grown in the light, the pigment is orange. These organisms behave as do saprophytes in humans and are nonpathogenic to laboratory animals. Synonym: scotochromogens. (05 Mar 2000) |
| group I mycobacteria | Mycobacteria that produce a bright yellow colour when grown in the presence of light. Organisms placed in this group appear to belong to the species Mycobacterium kansasii. Synonym: photochromogens. (05 Mar 2000) |
| group IV mycobacteria | Mycobacteria that grow rapidly and that do not produce pigment. Organisms placed in this group belong to such species as Mycobacterium ulcerans and M. Marinum. (05 Mar 2000) |
| group practice | Any group of three or more full-time physicians organised in a legally recognised entity for the provision of health care services, sharing space, equipment, personnel and records for both patient care and business management, and who have a predetermined arrangement for the distribution of income. (12 Dec 1998) |
| group practice, dental | Any group of three or more full-time dentists, organised in a legally recognised entity for the provision of dental care, sharing space, equipment, personnel and records for both patient care and business management, and who have a predetermined arrangement for the distribution of income. (12 Dec 1998) |
| group practice, prepaid | An organised group of three or more full-time physicians rendering services for a fixed prepayment. (12 Dec 1998) |
| group processes | The procedures through which a group approaches, attacks, and solves a common problem. (12 Dec 1998) |
| group psychotherapy | A type of psychological treatment involving several patients participating together in the presence of one or more psychotherapists who facilitate both emotional and rational cognitive interaction to effect uniquely targeted changes in the maladaptive behaviour of the individual patient in his or her everyday interpersonal exchanges. See also entries under group. (05 Mar 2000) |
| group purchasing | A shared service which combines the purchasing power of individual organizations or facilities in order to obtain lower prices for equipment and supplies. (12 Dec 1998) |
| group reaction | A reaction with an agglutinin or other antibody that is common (though usually in varying concentrations) to an entire group of related bacteria, e.g., the coli group. (05 Mar 2000) |
| group-specific protease | <enzyme> A serine protease, obtained from rat small intestine, which preferentially inactivates the apo forms of certain pyridoxal phosphate requiring enzymes Registry number: EC 3.4.21.- (26 Jun 1999) |
| group structure | The informal or formal organization of a group of people based on a network of personal relationships which is influenced by the size and composition, etc., of the group. (12 Dec 1998) |
| group test | In psychology, a test designed to be administered to more than one individual at a time; e.g., scholastic achievement test, medical college admissions test. (05 Mar 2000) |